Wiimms SZS Tools v1.09a r4169

- BZIP2 compression is now supported as altenative to 'Yaz0'. It is dedicated
to the WU8 file format for transfering files. BZIP2 files are smaller than
Yaz0 files and the creation is faster.
- The new option --bz forces BZIP2 compression instead of Yaz0 compression.
- The new option --wbz is a short cut for --wu8 --bz.
=> To create a WBZ (WU8+BZ) file: wszst compress --wbz TRACK.szs
- The new option --szs is a short cut for --u8 --yaz0.
=> To create a SZS (U8+Yaz0) file: wszst compress --szs TRACK.wbz